tribonacci sequence python code example
Example 1: how to create fibonacci sequence in python
n = int(input("Enter the value of 'n': "))
a = 0
b = 1
sum = 0
count = 1
print("Fibonacci Series: ", end = " ")
while(count <= n):
print(sum, end = " ")
count += 1
a = b
b = sum
sum = a + b
Example 2: fibonacci sequence python
def fib(num):
"""return the number at index num in the fibonacci sequence"""
if num <= 2:
return 1
return fib(num - 1) + fib(num - 2)
print(fib(6))
Example 3: iterative tribonacci python
def trib_iter(m):
lista=[m]
c=0
d=True
while d==True:
novalista=[]
for n in lista:
if n in [0,1,2]:
c+=1
else:
for i in range(1,4):
if n-i in [0,1,2]:
c+=1
else:
if n-i<0:
pass
else:
novalista.append(n-i)
if novalista==[]:
d=False
else:
lista=novalista
return c